Results 31 to 40 of about 1,545,883 (293)

Asymptotic expansions for degenerate parabolic equations

open access: yesComptes Rendus. Mathématique, 2014
We prove asymptotic convergence results for some analytical expansions of solutions to degenerate PDEs with applications to financial mathematics. In particular, we combine short-time and global-in-space error estimates, previously obtained in the uniformly parabolic case, with some a priori bounds on “short cylinders”, and we achieve short-time ...
PASCUCCI, ANDREA   +2 more
openaire   +1 more source

Discontinuous “viscosity” solutions of a degenerate parabolic equation [PDF]

open access: yesTransactions of the American Mathematical Society, 1990
We study a nonlinear degenerate parabolic equation of the second order. Regularizing the equation by adding some artificial viscosity, we construct a generalized solution. We show that this solution is not necessarily continuous at all points.
BERTSCH, MICHIEL, Dal Passo R, Ughi, M.
openaire   +4 more sources

Hölder gradient estimates for a class of singular or degenerate parabolic equations

open access: yesAdvances in Nonlinear Analysis, 2017
We prove interior Hölder estimates for the spatial gradients of the viscosity solutions to the singular or degenerate parabolic ...
Imbert Cyril   +2 more
doaj   +1 more source

Admissible conditions for parabolic equations degenerating at infinity [PDF]

open access: yesSt. Petersburg Mathematical Journal, 2008
From the introduction: We investigate existence and uniqueness for bounded solutions of the parabolic Cauchy problem \[ \begin{aligned} \rho\partial_tu= \Delta u\quad &\text{in }\mathbb{R}^n\times \mathbb{R}_+:= S,\\ u= u_0\quad &\text{in }\mathbb{R}^n\times \{0\}\;(n\geq 3).\end{aligned}\tag{1.1} \] Concerning the coefficient \(\rho= \rho(x)\) and the
KAMIN S   +2 more
openaire   +2 more sources

PERIODIC SOLUTION FOR A CLASS OF DOUBLY DEGENERATE PARABOLIC EQUATION WITH NEUMANN PROBLEM [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2015
In this article, we study the periodic solution for a class of doubly degenerate parabolic equation with nonlocal terms and Neumann boundary conditions. By using the theory of Leray-Schauder degree, we obtain the existence of nontrivial nonnegative time ...
Raad Awad Hameed, Wafaa M. Taha
doaj   +1 more source

Periodic solutions for a degenerate parabolic equation

open access: yesApplied Mathematics Letters, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yuanyuan Ke, Rui Huang, Jiebao Sun
openaire   +3 more sources

The fundamental solution of Cauchy problem for a single equation of the diffusion equation with inertia

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2014
The paper found the explicit form of the fundamental solution of  Cauchy problem for the equation of Kolmogorov type that has a finite number  groups of spatial variables which are degenerate parabolic.
H.P. Malytska, I.V. Burtnyak
doaj   +1 more source

Expansion of positivity to a class of doubly nonlinear parabolic equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
We establish the expansion of positivity of the nonnegative, local, weak solutions to the class of doubly nonlinear parabolic equations $$\partial_t (u^{q}) -\operatorname{div}{(|D u|^{p-2} D u)}=0, \qquad\ p>1 \ \text{and} \ q>0$$ considering ...
Eurica Henriques
doaj   +1 more source

Coefficient inverse problem for the strongly degenerate parabolic equation

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2023
The coefficient inverse problem for the degenerate parabolic equation is investigated. The minor coefficient of this equation is the polynomial of the first power with respect to the space variable with two unknown time-dependent functions.
N.M. Huzyk, P.Y. Pukach, M.I. Vovk
doaj   +1 more source

On classification of weak solutions to initial-boundary value problems for degenerate parabolic equations

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2010
The classification of the weak solutions to Dirichlet initial boundary value problemassociated with a linear degenerate parabolic equation has been studied. Some applications to associated optimal control problems in coeffcients are discussed.
I. G. Balanenko, P. I. Kogut
doaj   +1 more source

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